INTRODUCTION. 
7 
6. The Ferns of Great Britain, Illustrated by J. E. 
Sowerby. The descriptions, synonyms, &c., by C. 
Johnson, Esq. 1854<, 8vo, pp. 87, with 49 plates, 
uniform with those of ^'English Botany."" — The figures 
are coarse, and often not characteristic, especially in 
the details ; while the text, which for the most part 
omits all reference to varieties, is ample, philosophic, 
and accurate. 
7. The Ferns of Great Britain and Ireland; Nature- 
printed by H. Bradbury. By Thomas Moore, F.L.S., 
&c. Edited by Dr. Bindley. 1855. Imperial folio ; 
51 Plates, with . corresponding text. — This, which 
is the most magnificent work on the subject that 
has yet appeared, was the first practical illustration 
in this country of the process of Nature-printing. The 
figures are life-size, printed in colours, and they are 
accompanied by full descriptions, in which the varieties 
are copiously treated on. 
8. The Ferns of Great Britain and their allies. By 
Anne Pratt. Published by the Society for Promoting 
Christian Knowledge. 8vo, pp. 164, with 40 plates. 
— An indifferent compilation. 
